Emma survived hell in order to protect her sister. Freddie and his "family" saved her.
She thought she was safe, she was finally relaxed and healing. She didn't realize how wrong she was. The devil was successful for a reason.
Now what?
Would Freddie be able to find her and rescue her again?
How would she survive Edward this time?
What could he possibly want from her now?
And why would she try and help him escape?